Saw-filing machine.



N0. 628,625. Patented July Il, |899.

S. W. GUTBIDGE.

SAW FILING MACHINE.

(Application led Mar. 30, 1899.) (N0 Nudel.) 2 Sheets-Sheet l,

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No. 628,625. Patentod July Il, |899. S. W. GUTRIDGE.

SAW FILING MACHINE.

(Application med 1m. so, 1899.;

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UNITED STATES PATENT OFFICE.

SAMU-EL lWILLIAM GUTRIDGE, OF GRANITE, OREGON.

SAW-FILING MACHINE.

SPECIFICATION forming part of Letters Patent No. 628,625, dated J' uly 41,1,41 899. I Application led March 30,1899. Serial No. 711,084. (No model.)

To @ZZ whom it mctyconcern.:

Be it known that I, SAMUEL WILLIAM GUT- RIDGE, a citizen of the United States, -residing at Granite, in the county of Grant and State of Oregon, have invented a new and useful Saw-Filing Machine, of which the following is a specieation.

My invention relates to saw-filing machines, and has for its object to provide a simple, compact, and efficient construction and arrangement of part-s designed for filing the teeth of reciprocatory saws, such as handsaws, at any desired angle, t-he successive p0- sitions of the file being regulated by feeding devices for securing uniformity of dress.

Further objects and advantages of this invention will appear in the following description, and the novel features thereof will be particularly pointed out in the appended claims.

In the drawings, Figure l is a perspective view of a saw-filing machine constructed in accordance with my invention. Fig. 2 is a longitudinal section of a portion of the same. Fig. 3 is a detail view, partly broken away, of the Idle-holder. Fig. 4 is a detail view of one of the members of the file-holder guide.

Similar reference characters indicate correparts in all the figures of the drawings.

l designates a saw-clamp comprising'a fixed member 2, which constitutes the supporting frame or base'of the saw-filing devices, and a removable member 3, which is adapted for adjustment toward and from the plane of the stationary member by means of bolts 4 to provide for clamping a saw-blade 5 in operative position therebetween. Erected at opposite ends of the supporting-frame are standards 6 and 7, in suitable bearings of which are mounted the terminals of a feed-screw 8, which is thus disposed above and parallel with the clamp and preferably in the vertical plane of the seat formed between the clamp `members for the reception of the saw-blade.

This feed-screw is extended beyond the front upright or standard 6 and is squared, feathered, or otherwise constructed to carry a feedpinion 9, which is fitted upon said seat for axial adjustment, any suitable means, such as a key 10, being employedto secure the pinion at the desired adjustment. Mounted upon its under side with two or moreseries of gearteeth for engagement with thefeed-pinion, and it is obvious that by axially adjusting the feed-pinion upon the seat extension of the feed-screw it may be arranged in operative relation with different series of teeth on the driving-gear to cause different relative movements ofthe feed-pinion, it being my `object to so arrange the parts that one 'complete revolution of the driving gear will cause the advance of the file-supporting devices through a distance equal to the interval between two adjacent teeth of the saw which is being-filed, as will be more fully understood from the following description.

Mounted upon parallel .guides,12, formed byianges on the sawclamp,is a carriage 13, having depending legs forming slides to traverse said guide-flanges, and'also carrying a feed-nut 14, which is engaged by the feedscrew to provide for the communication of motion from the feed-screw to the carriage to advance the latter in a direction parallel with the saw-blade. Also mounted upon the carriage, of which the body portion is preferably parallelw'ithfthe upper surface of the support or saw-clamp, is a file-holder guide consisting of upper and lower members l5 and 16, provided with central coaxial pivots 17, mounted in suitable bearings in the upper and `lower sides of said body portion of the carriage, and having extensions or ears 1S connected by adjusting devices, such as screws 19, to provide for causing such frictional conarranged, respectively, in contact with the opposite sides of the v{ile-holder armsandprovided with set-screws 25, by which it may be tact of said guide members with the upper IOO end of said Iile' being fitted in a corresponding seat 28 in a shoulder or offset of the holder adjacent to the grip. The chuck may be secured at any desired angular adjustment in the bearing provided for its reception by l means of a set-screw 29, whereby the faces of thelfile may be arranged in any desired angular positions with relation to the teeth of the saw which is being filed.

It will be understood that when the file is arranged in place and the saw secured in the clamp the {ile-holder may be reciprocated v manually to cause the file to traverse the faces of the saw-teeth, and the angular adjustm ent of the le-holder guide provides for securin ga uniform bevel ofthe saw-teeth and also for reversing the position of the iile to dress alternate .teeth upon opposite sides.

As above indicated, the advance of the carriage parallel with the saw-blade is accomplished by turning the drivin g-gear, for which purpose the latter is provided with a handle or crank 30, and the extent of the advance movement for eachrevolntion of the drivinggear maybe regulated byarranging the feedpinion in operative relation with diiierent series of teeth on the drive-gear and alsoby ,employin g different feed-pinions having teeth spaced at differentintervals. In order, however, that the drive-gear may be secured for each adjustment of the carriage ina fixed position during the iiling of a tooth, I employ locking devices consisting ot a segmentalplate 31, secured tothe standard 6 adjacent ,to the plane of the under side of the drive-gear and having a socket 32 for the reception of the lower end of alocking-pin v33, which is mounted upon the drive-gear. Any suitable means may be employed for holding this locking-pin yieldingly in engagement with the socket or for withdrawing the same .from said socket when it is desired to turn the drive-gear to advance the carriage.l -In the construction illustrated the lockingpin is connected with a lever Si, suitably v mounted upon the gear, adjacent to the handle ofthe same, and provided with a triphandle 35, which is within reach of a nger of the hand of Aan operator grasping said gearhandle. A spring 36 is employedto normally holdsthe locking-pin in a depressed position.

From the abovedescription it will be seen that the mechanism is of simple construction, and that the file-holder guides may be adjusted to cause the holder to operate in a plane perpendicular to the saw-blade or at any other desired angle thereto, and that the extent of the advance movement of the carriage may be varied to suit the gage of the saw. When the teeth of a saw are being iiledon an oblique plane,whereby every alternate tooth is filed with a given adjustment of the iileV-holdery guides, two revolutions of the drive-gear are necessaryto adjust the carriage after the filing of each saw-toothis completed. It will be understood, furthermore, that various changes in the form, proportion, size, and the minor details of construction within the scope ot"v the appended claims may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

Having described my invention, what I claim is- A l. The combination With a saw-clamp having guides, of a feed-screw, a carriage mounted upon the guides and havinga feed-nutengaged by said feed-screw, a drive-gear having a plurality of series of gear-teeth, a Vileholder guide mounted upon`the carriageand a feed-pinion for axial adjustment upon the feed-screw to arrange it in operative relation with different series of teeth on the `drivegear,` substantially as specified.

2. In a saw-tiling machine, the combination with a supporting-frame, a feed-screw, a carriage for actuation by said feed-screwand having file-holder guides, a feed-pinion, and a drive-gear meshing with the feed-pinion, of a locking device for the drive-gearconsisting of a yielding pin mounted upon the drivegear for engagement with a iiXed socket, and exposed means, arranged adj acentto the handle of the drive-gear, for facilitatingthe disengagement of the locking pin from said socket, substantially as speciiied.

3. In a saw-filing machine, the combination with a supporting-frame, a-vfeed-.screw andvmeans for operating the same, of ,a carlriagefor actuation bythe feed-screw, .a iileholder guide having relatively movable members pivotally mountedupon the carriage and arranged at opposite sides of an interposed part of the same for frictional contact therewith, said members being horizontally disposed in reverse position and rotatably adjustable, means for securing said members in their adjusted positions, and a tile-holder mounted for reciprocation in the guide, substantially as specified.

4. In a saw-filing machine, vthe combinaf tion with a supporting-frame, a feed-screw and means for operating the same, of a carriage for actuation by the feed-screw, a ileholder guide having spaced members arranged upon opposite sides of and pivotally mounted upon an interposed portion of Ithe carriage, said members being horizontally disposed in reverse position and rotatably adj ustable for ang ularadj ustment with relation to the feed-screw, set-screws connecting said members for causing frictional contact thereof with the interposed portion of the carriage, and a file-holder mounted in said guide, substantially as specified. Y

5. In a saw-filing machine, the combination with a supporting-frame, a-feed-screw and means for operating the same, of a carriage for actuation by said feed-screw, a {ile- IOO iro

' members being herizontallydisposed in reholderl guide pivotally mounted upon the carriage for angular adjustment with relation to the path thereof and comprising horizontallydisposed pivoted members in reverse position and provided With channels on .their outer faces, means for securing `said guide at the desired adjustment, and a le-holder having parallel arms mounted in said4 channels in said guide and provided with means for engaging the extremities of a le, substantially as speciied. i

6. In a saw-filing machine, the combination with a supporting-frame, a feed-screw and means for operating the same, of a carriage -for actuation by said feed-screw, said ceiving one end of a file, substantially as specified.

7. In a saw-filing machine, the combination With a supporting-frame, a feed-screw and means for operating the same, of a carriage adapted for actuation by the feed-screw, a file-holder guide mounted upon the carriage and comprising horizontally-disposed pivoted members in reverse positions and provided With channels on their outer faces,a ile-` holder mounted for reciprocatory movement in the channels upon the guide, a chuck-support mounted for longitudinal adjustment upon the file-holder, means for securing the chuck-support in its adjusted positions, a

chuck revolubly mounted in a bearing in said .Y

support and provided with a socket for the reception of one end of a file, and a set-screwT for securing said chuck in its adjustedpositions,` substantially as specified.

In testimony that I claim theforegoing as my own I have hereto affixedmy signature in the presence of two witnesses.

SAMUEL WILLIAM GUTRIDGE.

` Witnesses:

" L. N. FORD,

Mrs. S. J. BROWN. 

